4th 9 Week Review Practice

True or False: Lightning is a form of static electricity.

• True
• False

Materials such as copper, iron, gold and silver are good

• Conductors
• Insulators

Materials such as plastic, rubber, and glass are

• Conductors
• Insulators

An object that allows electrons to flow easily

• Conductors
• Insulators

The process of separating opposite charges within a neutral object is called

• Conductors
• Insulators
• Friction
• Polarization

A process in which one charged object will cause two objects to be charged without touching the objects is known as

• Conduction
• Induction
• Friction
• Convection

True or False: Protons and neutrons balance the charge of an atom.

• True
• False

Pith balls are small objects that hang from a string that are easily charged. Look closely at the picture. What type of charge do these pith balls have?

• Like charge
• Opposite charges

A PVC pipe has the same number of electrons as protons. The PVC pipe is considered

• positively charged
• negatively charged
• neutral

An object becomes positively charged by

• gaining protons
• gaining electrons
• losing protons
• losing electrons